SIST EN 2545-2:2001

Overview

EN 2545-2:1995 (CEN) is the aerospace-series technical specification that defines the particular requirements for remelting stock used to manufacture titanium and titanium alloy castings. It is Part 2 of the EN 2545 series and is intended to be used in conjunction with EN 2545-1. The standard targets material quality and supply requirements specific to remelted titanium feedstock for critical cast components, with emphasis on reproducible properties and documented provenance for aerospace applications.

Key topics and requirements

While EN 2545-2 does not stand alone (it complements EN 2545-1), the standard typically addresses the following technical topics:

• Scope and definitions relevant to remelting stock for titanium and titanium alloys.
• Material acceptance criteria covering the quality of remelted stock used as feed material for casting operations.
• Manufacturing and remelting practices intended to ensure consistent metallurgical condition and reduced contamination risk.
• Traceability and documentation requirements for batch identity, heat numbers and records supporting material origin and processing history.
• Inspection and testing provisions such as sampling, non‑destructive examination, and laboratory tests to verify compliance with agreed properties and absence of unacceptable defects.
• Marking and packaging requirements to preserve material integrity during storage and transport.
• Conformance and certification documentation to support procurement and quality assurance in regulated industries.

Note: The standard sets procedural and documentary requirements rather than prescribing specific alloy chemistries or dimensional limits - users apply EN 2545-2 together with part 1 and applicable alloy specifications.

Applications and users

EN 2545-2 is used by organizations involved in the supply chain for titanium castings where remelting stock quality is critical:

• Aerospace OEMs and tiered suppliers procuring titanium casting feedstock for structural and engine components.
• Foundries and investment‑casting shops specifying remelt source materials for titanium alloy castings.
• Quality, metallurgical and procurement engineers who require standardized material acceptance, traceability and test documentation.
• Certification bodies and auditors assessing compliance with aerospace material standards.

Using EN 2545-2 helps minimize casting defects related to feedstock variability and supports regulatory and contractual compliance for high‑reliability titanium parts.

Related standards

• EN 2545-1 (Part 1) - general provisions for titanium and titanium alloy remelting stock and castings (use in conjunction).
• Other aerospace and material specifications for specific titanium alloys and casting processes may be referenced for alloy chemistries, mechanical properties and test methods.